DJ
Dorothy Johnson — 1930 US Census Record
Model Tree available1930 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this Dorothy Johnson across the 1910, 1920 and 1930 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed), with identified parents Clarence & Mary — first a daughter (b.~1904), then head of a 4-person household.
Age 26
b. ~1904
Female
Daughter
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Allegheny, Pennsylvania |
| Surname | Johnson |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Book-Keeper |
| Industry | Stocks + Bonds |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Book-Keeper |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1904 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Johnson | Daughter | — | 26 | ~1904 |
| Aimee Johnson | Daughter | — | 24 | ~1906 |
| Margaret Johnson | Head | — | 63 | ~1867 |
| Lyman Johnson | Other | — | 5 | ~1925 |
Census Appearances
1910
Allegheny, Pennsylvania
Daughter, age 5
Allegheny, Pennsylvania · implied b. ~1905 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Dorotha E. S. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Allegheny, Pennsylvania
Daughter, age 16
Allegheny, Pennsylvania · implied b. ~1904 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Dorothy |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Daughter, age 26
Allegheny, Pennsylvania · implied b. ~1904 — 4 household members
| Surname | Johnson |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Book-Keeper |
| Industry | Stocks + Bonds |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Dorothy Johnson across 3 US Census years (1910, 1920 and 1930) in Allegheny, Pennsylvania, using XGBoost record linkage. Identified parents: father Clarence Johnson (~0.92 confidence) and mother Mary Johnson (~0.92 confidence) and mother Margaret Johnson (~0.92 confidence) and mother Margaret Johnson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Clarence Johnson
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Mary Johnson
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Margaret Johnson
b. ~1868
Source mother
● Household
· direct · ~0.92
Mother
Margaret Johnson
b. ~1867
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Dorothy Johnson
Daughter · 1930 · age 26 · b. ~1904 · Pennsylvania
★ You are viewing this record
Sibling
Aimee Johnson
Sibling · 1930 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Allegheny, Pennsylvania
Open full size
1930 US Federal Census — Allegheny, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel1985:0780)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Chester Driscoll | 50 | Head | Carpenter | Pennsylvania |
| 2 | Annie Driscoll | 56 | Wife | Housekeeper | Massachusetts |
| 3 | Edward Granger | 23 | Step son | Upholsterer | Massachusetts |
| 4 | Jack Mason | 28 | Roomer | Proprietor | Pennsylvania |
| 5 | Lillian Mason | 24 | Roomer | — | Pennsylvania |
| 6 | Thomas Green | 30 | Roomer | Mechanic | West Virginia |
| 7 | Sarah Green | 26 | Roomer | — | West Virginia |
| 8 | Mary Green | 6 | Roomer | — | West Virginia |
| 9 | Ada Andrus | 48 | Roomer | Demonstrator | Pennsylvania |
| 10 | Arthur E. Kiefer | 20 | Roomer | Carpenter | Pennsylvania |
| 11 | Caroline Kiefer | 16 | Roomer | — | Pennsylvania |
| 12 | John Hagen | 23 | Roomer | Laborer | Pennsylvania |
| 13 | Dorothy Hagen | 21 | Roomer | Cashier | Pennsylvania |
| 14 | Earl Still | 31 | Head | Salesman | New York |
| 15 | Ida Still | 27 | Wife | — | Pennsylvania |
| 16 | John Still | 7 | Son | — | Pennsylvania |
| 17 | James Still | 6 | Son | — | Pennsylvania |
| 18 | Robert Still | 1 | Son | — | Pennsylvania |
| 19 | Walter Wrigley | 59 | Head | Landlord | England |
| 20 | Elizabeth Wrigley | 52 | Wife | — | England |
| 21 | Emily Wrigley | 22 | Daughter | Stenographer | England |
| 22 | James P. Blazer | 29 | Head | Electrical Engineer | West Virginia |
| 23 | Lula M. Blazer | 22 | Wife | — | Ohio |
| 24 | Helen Blazer | 1 | Daughter | — | West Virginia |
| 25 | John Metzger | 42 | Roomer | Operator | Pennsylvania |
| 26 | Harold Myers | 30 | Roomer | Cook | Pennsylvania |
| 27 | Clara Myers | 26 | Roomer | Stenographer | Pennsylvania |
| 28 | Albert Younger | 27 | Roomer | Collector | Pennsylvania |
| 29 | Julia Younger | 24 | Roomer | Clerk | Pennsylvania |
| 30 | Flora Walls | 45 | Head | Housekeeper | West Virginia |
| 31 | Ethel Walls | 22 | Daughter | Waitress | West Virginia |
| 32 | Cecil Walls | 19 | Son | Mechanic | West Virginia |
| 33 | Joseph S. White | 60 | Roomer | Salesman | Pennsylvania |
| 34 | Anna G. White | 54 | Roomer | — | Pennsylvania |
| 35 | Edward E. Smith | 47 | Head | Laborer | Pennsylvania |
| 36 | Susan Smith | 33 | Wife | — | Pennsylvania |
| 37 | Marjorie Smith | 10 | Daughter | — | Pennsylvania |
| 38 | Leigh Smith | 7 | Son | — | Pennsylvania |
| 39 | Arthur Smith | 4 | Son | — | Pennsylvania |
| 40 | Eleanore Smith | 2 | Daughter | — | Pennsylvania |
| 41 | Earle Smith | 0 | Son | — | Pennsylvania |
| 42 | Clyde Jennings | 29 | Roomer | Salesman | Pennsylvania |
| 43 | Audrey Jennings | 25 | Roomer | Operator | Ohio |
| 44 | Grace Black | 50 | Roomer | Seamstress | Pennsylvania |
| 45 | John Rausch | 29 | Roomer | Long Coupler | Illinois |
| 46 | Henry Rausch | 31 | Roomer | Painter | Illinois |
| 47 | Margaret Johnson | 63 | Head | — | Pennsylvania |
| 48 | Dorothy Johnson THIS PERSON | 26 | Daughter | Book-Keeper | Pennsylvania |
| 49 | Aimee Johnson | 24 | Daughter | Typist | Pennsylvania |
| 50 | Lyman Johnson | 5 | Grandson | — | Pennsylvania |
Pedigree Summary
Dorothy + 1 sibling
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)